| 摘要 |
A universal power adapter comprised of a standard IEC three-wire socket, an AC/DC power supply detector circuit, an AC/DC power supply selector circuit, an AC/DC power supply pre-treating circuit, a DC power supply transformer circuit, a feedback and regulating circuit, and a DC output circuit, wherein said standard IEC three-wire socket connects an AC or DC input voltage to said AC/DC power supply selector circuit and said AC/DC power supply pre-treating circuit for converting into a DC voltage via said AC/DC power supply detector circuit, said DC voltage being treated through said DC power supply transformer circuit and said feed back and regulating circuit to provide a DC working voltage for output through an output device.
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